10985988 has 24 divisors (see below), whose sum is σ = 27606208. Its totient is φ = 3380256.

The previous prime is 10985981. The next prime is 10985993. The reversal of 10985988 is 88958901.

It is a super-2 number, since 2×10985988² = 241383864672288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10985981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35056 + ... + 35367.

Almost surely, 2^10985988 is an apocalyptic number.

It is an amenable number.

10985988 is an abundant number, since it is smaller than the sum of its proper divisors (16620220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10985988 is a wasteful number, since it uses less digits than its factorization.

10985988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70443 (or 70441 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 10985988 is about 3314.5117287468. The cubic root of 10985988 is about 222.3035373898.

The spelling of 10985988 in words is "ten million, nine hundred eighty-five thousand, nine hundred eighty-eight".